China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Rare earth magnets? Neodymium magnets? Are these 2 types the same type of magnet? There are many users are confused, so today this article to popularize the rare earth magnets and neodymium magnets some of the differences, tell you they are not referring to the same type of magnet.
In fact, rare-earth magnets are not neodymium magnets, neodymium magnets are one of the rare-earth magnets, there is a rare-earth magnet is samarium cobalt magnets, just rare-earth neodymium magnets are more commonly used in the market.
1. Definitional Differences
Rare-earth magnets refer to magnets made of rare-earth elements (such as neodymium Nd, samarium Sm, cerium Ce, dysprosium Dy, terbium Tb, etc.), which is a general term for high-performance magnets.
Neodymium magnets or NdFeB magnets, belonging to the third generation of rare earth permanent magnetic materials, is currently the strongest performance, one of the most widely used permanent magnetic materials. The full name is “NdFeB permanent magnets”.
2. Material Composition Difference
Neodymium magnet is mainly composed of neodymium (Nd), iron (Fe), boron (B), sometimes add dysprosium (Dy), terbium (Tb), etc. to improve temperature resistance, samarium cobalt magnets are mainly composed of samarium (Sm), cobalt (Co), rare earth magnets is a general term, including neodymium magnets, samarium cobalt magnets.
Pictures of rare earth neodymium magnets, including round, ring and countersunk holes shape.
3. Performance Differences;
Refer to the article Neodymium magnets vs Samarium Cobalt magnets, Includes a comparison of these 2 magnets in terms of strength, temperature resistance, cost, and applications.
If you need to know the difference between samarium cobalt permanent magnets and neodymium permanent magnets you can click through the link above to see, in short, rare earth magnets is a general term that contains types of neodymium iron boron and samarium cobalt, and neodymium magnets specifically refers to neodymium iron boron magnets. Neodymium magnets are more magnetic and lower cost, but weaker in temperature resistance and corrosion resistance; samarium cobalt magnets are more resistant to high temperature and corrosion, suitable for extreme environments.
More permanent magnet types to compare;
Bonded vs Sintered Neodymium Magnets
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